{"raw_statement":[{"iden":"problem statement","content":"There is an arithmetic progression with $L$ terms: $s_0, s_1, s_2, ... , s_{L-1}$.\nThe initial term is $A$, and the common difference is $B$. That is, $s_i = A + B \\times i$ holds.\nConsider the integer obtained by concatenating the terms written in base ten without leading zeros. For example, the sequence $3, 7, 11, 15, 19$ would be concatenated into $37111519$. What is the remainder when that integer is divided by $M$?"},{"iden":"constraints","content":"*   All values in input are integers.\n*   $1 \\leq L, A, B < 10^{18}$\n*   $2 \\leq M \\leq 10^9$\n*   All terms in the arithmetic progression are less than $10^{18}$."},{"iden":"input","content":"Input is given from Standard Input in the following format:\n\n$L$ $A$ $B$ $M$"},{"iden":"sample input 1","content":"5 3 4 10007"},{"iden":"sample output 1","content":"5563\n\nOur arithmetic progression is $3, 7, 11, 15, 19$, so the answer is $37111519$ mod $10007$, that is, $5563$."},{"iden":"sample input 2","content":"4 8 1 1000000"},{"iden":"sample output 2","content":"891011"},{"iden":"sample input 3","content":"107 10000000000007 1000000000000007 998244353"},{"iden":"sample output 3","content":"39122908"}],"translated_statement":null,"sample_group":[],"show_order":["default"],"formal_statement":null,"simple_statement":null,"has_page_source":true}